HCPL-817-W0BE Equivalent & Substitute Parts

Part Overview

The HCPL-817-W0BE is an optoisolator with transistor output manufactured by Broadcom Limited. This 4-DIP through-hole component provides 5000Vrms isolation and is designed for applications requiring galvanic isolation between input and output circuits. The part is active and in production. Substitute parts may be required due to inventory availability, lead time considerations, or specific performance requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

HCPL-817-W0BE

Broadcom LimitedIn Stock: 1011HCPL-817-W0BE Datasheet

Current PartRFQ

ISP817A

Isocom Components 2004 LTDIn Stock: 12821ISP817A Datasheet

MFR RecommendedRFQ

ISP817BX

Isocom Components 2004 LTDIn Stock: 870ISP817BX Datasheet

MFR RecommendedRFQ

ISP817CX

Isocom Components 2004 LTDIn Stock: 2718ISP817CX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-817-W0BE must meet the following criteria:

Critical Parameters for Substitution:

• Single channel optoisolator with transistor output
• DC input type
• Isolation voltage ≥ 5000Vrms
• Current transfer ratio minimum ≥ 130% @ 5mA
• Output voltage capability ≥ 70V
• Output current capability ≥ 50mA per channel
• Rise/Fall time ≤ 4µs / 3µs
• Through-hole mounting in 4-DIP package
• Operating temperature range -30°C ~ 100°C
• ROHS3 Compliant
• MSL 1 (Unlimited)

The three substitute parts (ISP817A, ISP817BX, ISP817CX) are manufactured by Isocom Components 2004 LTD and meet or exceed all critical electrical parameters. All substitutes provide higher isolation voltage (5300Vrms) and maintain compatibility with the thermal and environmental specifications of the original part.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active products with ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the HCPL-817-W0BE.

ISP817A: Meets isolation voltage and timing specifications. Current transfer ratio minimum of 80% @ 5mA is below the original part specification of 130% @ 5mA. This part is suitable only for applications where lower current transfer ratio is acceptable.

ISP817BX: Meets all electrical specifications with current transfer ratio minimum of 130% @ 5mA, matching the original part exactly. Output voltage capability is 80V, exceeding the original 70V specification. This part provides direct functional equivalence.

ISP817CX: Exceeds all electrical specifications with current transfer ratio minimum of 300% @ 5mA and maximum of 600% @ 5mA. Output voltage capability is 80V. This part is suitable for applications requiring higher current transfer ratio performance.

All substitute parts feature 4-DIP through-hole packaging with slightly smaller body dimensions (0.300" vs 0.400") but maintain electrical and thermal compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can ISP817A be used as a direct replacement for HCPL-817-W0BE?

A: ISP817A does not meet the minimum current transfer ratio specification. The original part requires 130% @ 5mA minimum, while ISP817A provides only 80% @ 5mA minimum. Use ISP817A only if your application circuit design accommodates lower current transfer ratio performance.

Q: What is the difference between ISP817BX and ISP817CX?

A: Both parts meet all critical specifications. ISP817BX provides current transfer ratio of 130-260% @ 5mA, matching the original part. ISP817CX provides higher current transfer ratio of 300-600% @ 5mA, offering enhanced performance for applications requiring faster response or higher output current capability.

Q: Are the package dimensions compatible between HCPL-817-W0BE and the ISP817 series?

A: All parts use 4-DIP through-hole packages. The HCPL-817-W0BE has body dimensions of 0.400" (10.16mm), while ISP817A, ISP817BX, and ISP817CX have body dimensions of 0.300" (7.62mm). Both sizes fit standard 4-DIP through-hole footprints on PCBs designed for either dimension.

Q: Do all substitute parts meet the same regulatory requirements?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and rated for the same operating temperature range of -30°C ~ 100°C with MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the isolation voltage difference between the original and substitute parts?

A: HCPL-817-W0BE provides 5000Vrms isolation. All three substitute parts (ISP817A, ISP817BX, ISP817CX) provide 5300Vrms isolation, which exceeds the original specification and provides additional safety margin.